Spiral seam submerged arc welding steel pipe cutting device

Abstract

The utility model relates to the technical field of steel pipe cutting, in particular to a spiral seam submerged arc welding steel pipe cutting device which comprises a bottom plate, two symmetrically-distributed vertical plates are fixedly connected to the upper end face of the bottom plate, rectangular holes are formed in the outer walls of the two vertical plates, and clamping mechanisms are arranged in the two rectangular holes. A first lead screw is rotationally connected between the two vertical plates, a second servo motor is installed on the right end face of the vertical plate located on the right side, the second servo motor, the first lead screw, the first sliding plate and the first sliding rod are matched, the plasma cutting machine can be driven to move left and right, and the plasma cutting machine moves left and right when rotating for cutting; a steel pipe can be cut into an inclined plane or other shapes, cutting is flexible, through cooperation of a third servo motor, a second lead screw, a second sliding rod, a second sliding plate, a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate can be driven to synchronously and relatively move to clamp and fix the steel pipe, the steel pipe can be automatically centered, follow-up cutting operation is facilitated, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe cutting, in particular to a spiral seam submerged arc welded steel pipe cutting device. Background Art

[0002] Spiral seam submerged arc welded steel pipe refers to a metal pipe with a spiral seam welded by submerged arc welding technology. It can produce welded pipes with larger diameters with narrower billets, and can also produce welded pipes with different diameters with billets of the same width. It has low production costs, simple processes, and is easy to produce large-diameter pipes. Large-diameter welded pipes mostly use the spiral seam submerged arc welding process. When cutting spiral seam submerged arc welded steel pipes, a plasma cutting machine is required.

[0003] Chinese patent CN218657270U discloses a spiral seam submerged arc welded steel pipe cutting device, comprising a spiral seam submerged arc welded steel pipe, a fixed ring and a circular ring are movably sleeved on the surface of the spiral seam submerged arc welded steel pipe, the fixed ring is fixedly connected to the circular ring, a threaded rod is connected to the internal thread of the fixed ring, one end of the threaded rod extending to the inside of the fixed ring is rotatably connected to a fixed plate, the fixed plate is fitted with the surface of the spiral seam submerged arc welded steel pipe, a circular slide is provided on the side of the circular ring away from the fixed ring, a rotating ring is rotatably connected to the inside of the circular slide, a connecting column slidably connected to the circular slide is fixedly installed on the surface of the rotating ring, a connecting plate is fixedly installed on one end of the connecting column away from the rotating ring, a plasma cutting machine is fixedly installed on the side of the connecting plate away from the connecting column, a connecting rod is fixedly installed on the plasma cutting machine, a cutting head is arranged inside the connecting rod, and the cutting head is rotated around the spiral seam submerged arc welded steel pipe by the cutting head, so as to guide the cutting head, thereby ensuring the flatness of the cutting of the spiral seam submerged arc welded steel pipe, improving the neatness of the cutting surface, and facilitating accurate welding in the later stage.

[0004] The above-mentioned spiral seam submerged arc welding steel pipe cutting device can guide the cutting head to make the cutting surface neat, but it can only cut a plane and cannot cut the steel pipe into an inclined surface or other shapes. It has limitations and needs to be improved. Utility Model Content

[0005] In view of the above problems, the utility model provides a spiral seam submerged arc welded steel pipe cutting device to solve the above problems.

[0006] The utility model is implemented as follows: a spiral seam submerged arc welding steel pipe cutting device comprises a bottom plate, the upper end surface of the bottom plate is fixedly connected with two symmetrically distributed vertical plates, the outer walls of the two vertical plates are provided with rectangular holes, the insides of the two rectangular holes are provided with clamping mechanisms, a first screw rod is rotatably connected between the two vertical plates, a second servo motor is installed on the right end surface of the vertical plate located on the right side, the output end of the second servo motor is fixedly connected to the first screw rod, the outer wall of the first screw rod is threadedly connected with a first slide plate, the inside of the first slide plate is rotatably connected with a cylinder, the left end surface of the cylinder is fixedly connected with a turntable, the left end surface of the turntable is fixedly connected with a mounting plate, an electric push rod is installed on the upper end surface of the mounting plate, the output end of the electric push rod extends to the bottom of the mounting plate and is installed with a plasma cutting machine, the right end of the outer wall of the cylinder is fixedly connected with a second synchronous pulley, the right end surface of the first slide plate is provided with a first servo motor, the output end of the first servo motor is fixedly connected with a first synchronous pulley, and the first synchronous pulley and the second synchronous pulley are connected through a synchronous belt transmission.

[0007] In order to facilitate the fixation of the steel pipe, as a preferred spiral seam submerged arc welding steel pipe cutting device of the utility model, the clamping mechanism includes a second screw rod, the upper and lower ends of the outer wall of the second screw rod are threadedly connected with a second slide plate, the upper and lower end surfaces inside the rectangular hole are fixedly connected with a second slide bar, the two second slide plates are slidably connected to the second slide bar, the lower end surface of the second slide plate located on the upper side is fixedly connected with a first clamping plate, and the upper end surface of the second slide plate located on the lower side is fixedly connected with two symmetrically distributed second clamping plates, the upper end surface of the vertical plate is installed with a third servo motor, and the output end of the third servo motor is fixedly connected to the second screw rod.

[0008] In order to facilitate the stable left and right sliding of the first slide plate, as a preferred spiral seam submerged arc welding steel pipe cutting device of the utility model, two symmetrically distributed first slide bars are fixedly connected between the two vertical plates, and the first slide plate is slidably connected to the two first slide bars.

[0009] In order to facilitate the second screw rod to drive the two second slide plates to move relative to or away from each other, as a preferred spiral seam submerged arc welding steel pipe cutting device of the utility model, the second screw rod is a bidirectional screw rod.

[0010] In order to prevent the steel pipe from being pinched, as a preferred embodiment of the spiral seam submerged arc welding steel pipe cutting device of the present invention, the outer walls opposite to each other of the first clamping plate and the second clamping plate are both provided with rubber pads.

[0011] In order to facilitate the control of the equipment, as a preferred spiral seam submerged arc welding steel pipe cutting device of the utility model, a controller is provided on the front end face of the vertical plate on the right side, and the electric push rod, the first servo motor, the second servo motor and the third servo motor are all electrically connected to the controller.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The spiral seam submerged arc welding steel pipe cutting device can drive the plasma cutting machine to rotate through the cooperation of the first servo motor, the first synchronous pulley, the second synchronous pulley, the cylinder and the turntable, so as to perform circular cutting and cut the steel pipe into a plane. The plasma cutting machine can be driven to move left and right through the cooperation of the second servo motor, the first screw rod, the first slide plate and the first slide bar. When the plasma cutting machine rotates and cuts, it moves left and right to cut the steel pipe into an inclined surface or other shapes, and the cutting is flexible. The first and second splints can be driven to move synchronously relative to each other to clamp and fix the steel pipe through the cooperation of the third servo motor, the second screw rod, the second slide bar, the second slide plate, the first clamping plate and the second clamping plate, so as to automatically center the steel pipe, facilitate subsequent cutting operations, and be easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the overall structure diagram of a spiral seam submerged arc welding steel pipe cutting device of the utility model;

[0015] Figure 2 This is a structural diagram of another angle of a spiral seam submerged arc welded steel pipe cutting device of the utility model;

[0016] Figure 3 This is a left view of a spiral seam submerged arc welded steel pipe cutting device of the utility model;

[0017] Figure 4 This is a structural diagram of the second splint of the utility model;

[0018] Figure 5 This is a structural diagram of the first splint of the utility model.

[0019] In the figure, 1, bottom plate; 2, vertical plate; 3, rectangular hole; 4, first screw rod; 5, first slide rod; 6, first slide plate; 7, cylinder; 8, turntable; 9, mounting plate; 10, electric push rod; 11, plasma cutting machine; 12, first servo motor; 13, first synchronous pulley; 14, second synchronous pulley; 15, second servo motor; 16, third servo motor; 17, second screw rod; 18, second slide plate; 19, first clamping plate; 20, second clamping plate; 21, controller; 22, second slide rod. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0022] See also Figure 1-5 A spiral seam submerged arc welding steel pipe cutting device comprises a bottom plate 1, the upper end surface of the bottom plate 1 is fixedly connected with two symmetrically distributed vertical plates 2, the outer walls of the two vertical plates 2 are each provided with a rectangular hole 3, the inside of the two rectangular holes 3 are each provided with a clamping mechanism, a first screw rod 4 is rotatably connected between the two vertical plates 2, a second servo motor 15 is installed on the right end surface of the right vertical plate 2, the output end of the second servo motor 15 is fixedly connected to the first screw rod 4, the outer wall of the first screw rod 4 is threadedly connected with a first slide plate 6, and the inside of the first slide plate 6 is rotatably connected with a cylinder 7 The left end face of the cylinder 7 is fixedly connected with a turntable 8, the left end face of the turntable 8 is fixedly connected with a mounting plate 9, the upper end face of the mounting plate 9 is installed with an electric push rod 10, the output end of the electric push rod 10 extends to the bottom of the mounting plate 9 and is installed with a plasma cutting machine 11, the right end of the outer wall of the cylinder 7 is fixedly connected with a second synchronous pulley 14, the right end face of the first slide plate 6 is installed with a first servo motor 12, the output end of the first servo motor 12 is fixedly connected with a first synchronous pulley 13, and the first synchronous pulley 13 and the second synchronous pulley 14 are connected through a synchronous belt drive.

[0023] In this embodiment: the electric push rod 10 is started, and the electric push rod 10 drives the plasma cutter 11 to move up and down, thereby cutting steel pipes of different diameters; the first servo motor 12 is started, and the first servo motor 12 drives the first synchronous pulley 13 to rotate, and then drives the second synchronous pulley 14 to rotate through the synchronous belt; the second synchronous pulley 14 further drives the cylinder 7 to rotate, and then drives the turntable 8 to rotate; the turntable 8 further drives the mounting plate 9, the electric push rod 10 and the plasma cutter 11 to rotate, thereby performing annular cutting on the steel pipe; the second servo motor 15 is started, and the second servo motor 15 drives the first screw rod 4 to rotate, and then drives the first slide plate 6 to slide left and right along the two first slide bars 5; the first slide plate 6 further drives the plasma cutter 11 to move left and right; while the plasma cutter 11 is rotating, the plasma cutter 11 is driven to move left and right through the first slide plate 6, so that the steel pipe can be cut into an inclined surface or other shapes, and the cutting is flexible.

[0024] As a technical optimization scheme of the utility model, the clamping mechanism includes a second screw rod 17, and the upper and lower ends of the outer wall of the second screw rod 17 are threadedly connected with a second slide plate 18, and the upper and lower end surfaces inside the rectangular hole 3 are fixedly connected with a second slide rod 22, and the two second slide plates 18 are slidingly connected to the second slide rod 22, and the lower end surface of the second slide plate 18 on the upper side is fixedly connected with a first clamping plate 19, and the upper end surface of the second slide plate 18 on the lower side is fixedly connected with two symmetrically distributed second clamping plates 20, and the upper end surface of the vertical plate 2 is installed with a third servo motor 16, and the output end of the third servo motor 16 is fixedly connected to the second screw rod 17.

[0025] In this embodiment: the steel pipe is inserted between the first clamping plate 19 and the second clamping plate 20, and the third servo motor 16 is started. The third servo motor 16 drives the second screw rod 17 to rotate. The second screw rod 17 is a bidirectional screw rod. When the second screw rod 17 rotates, it drives the two second slide plates 18 to move relative to each other, and then drives the first clamping plate 19 and the two second clamping plates 20 to move relative to each other, so that the steel pipe is clamped between the first clamping plate 19 and the second clamping plate 20. The steel pipe is clamped and fixed by the relative movement of the first clamping plate 19 and the second clamping plate 20, and the steel pipe can be automatically centered, which is convenient for subsequent cutting operations.

[0026] As a technical optimization solution of the utility model, two symmetrically distributed first sliding rods 5 are fixedly connected between the two vertical plates 2, and the first sliding plate 6 is slidably connected to the two first sliding rods 5.

[0027] In this embodiment, the first slide plate 6 is slidably connected to the two first slide bars 5, so that the first slide plate 6 can move stably left and right.

[0028] As a technical optimization solution of the present invention, the second screw rod 17 is a bidirectional screw rod.

[0029] In this embodiment, by configuring the second screw rod 17 as a bidirectional screw rod, the second screw rod 17 can drive the two second slide plates 18 to move relative to or away from each other when rotating.

[0030] As a technical optimization solution of the present invention, rubber pads are provided on the opposite outer walls of the first clamping plate 19 and the second clamping plate 20 .

[0031] In this embodiment, rubber pads are provided on the outer walls of the first clamping plate 19 and the second clamping plate 20 to prevent the steel pipe from being pinched.

[0032] As a technical optimization solution of the utility model, a controller 21 is provided at the front end surface of the right vertical plate 2 , and the electric push rod 10 , the first servo motor 12 , the second servo motor 15 and the third servo motor 16 are all electrically connected to the controller 21 .

[0033] In this embodiment: the device is controlled by the controller 21, which saves time and effort and improves the degree of automation.

[0034] The working principle and use process of the utility model are as follows: when in use, first insert the steel pipe between the first clamping plate 19 and the second clamping plate 20, then start the third servo motor 16, the third servo motor 16 drives the second screw rod 17 to rotate, the second screw rod 17 is a bidirectional screw rod, when the second screw rod 17 rotates, it drives the two second slide plates 18 to move relative to each other, and then drives the first clamping plate 19 and the two second clamping plates 20 to move relative to each other, so that the steel pipe is clamped between the first clamping plate 19 and the second clamping plate 20, then start the electric push rod 10, the electric push rod 10 drives the plasma cutting machine 11 to move downward, so that the cutting head approaches the steel pipe for cutting, and then starts the first servo motor 12, the first servo motor 12 drives the first synchronous pulley 13 to rotate The second synchronous pulley 14 is driven to rotate through the synchronous belt, and the second synchronous pulley 14 further drives the cylinder 7 to rotate, and then drives the turntable 8 to rotate, and the turntable 8 further drives the mounting plate 9, the electric push rod 10 and the plasma cutter 11 to rotate, so as to perform annular cutting on the steel pipe. When a bevel or other shape is to be cut, the second servo motor 15 is started, and the second servo motor 15 drives the first screw rod 4 to rotate, and then drives the first slide plate 6 to slide left and right along the two first slide bars 5. The first slide plate 6 further drives the plasma cutter 11 to move left and right. While the plasma cutter 11 is rotating, the plasma cutter 11 is driven to move left and right through the first slide plate 6, so that the steel pipe can be cut into a bevel or other shapes, and the cutting is flexible.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A spiral seam submerged arc welded steel pipe cutting device, comprising a bottom plate (1), characterized in that: The upper end surface of the bottom plate (1) is fixedly connected to two symmetrically distributed vertical plates (2), the outer walls of the two vertical plates (2) are each provided with a rectangular hole (3), the interiors of the two rectangular holes (3) are each provided with a clamping mechanism, a first screw rod (4) is rotatably connected between the two vertical plates (2), a second servo motor (15) is installed on the right end surface of the vertical plate (2) on the right side, the output end of the second servo motor (15) is fixedly connected to the first screw rod (4), the outer wall of the first screw rod (4) is threadedly connected to a first slide plate (6), the interior of the first slide plate (6) is rotatably connected to a cylinder (7), the left end surface of the cylinder (7) is fixedly connected to the first slide plate (6), A rotating disk (8) is fixedly connected to the left end face of the rotating disk (8), a mounting plate (9) is fixedly connected to the upper end face of the mounting plate (9), an electric push rod (10) is installed on the upper end face of the mounting plate (9), the output end of the electric push rod (10) extends to the bottom of the mounting plate (9) and is installed with a plasma cutting machine (11), the right end of the outer wall of the cylinder (7) is fixedly connected to a second synchronous pulley (14), the right end face of the first slide plate (6) is installed with a first servo motor (12), the output end of the first servo motor (12) is fixedly connected to a first synchronous pulley (13), and the first synchronous pulley (13) and the second synchronous pulley (14) are connected through a synchronous belt transmission.

2. A spiral seam submerged arc welded steel pipe cutting device according to claim 1, characterized in that: The clamping mechanism comprises a second screw rod (17), the upper and lower ends of the outer wall of the second screw rod (17) are both threadedly connected with a second slide plate (18), the upper and lower end surfaces inside the rectangular hole (3) are fixedly connected with a second slide bar (22), the two second slide plates (18) are both slidably connected to the second slide bar (22), the lower end surface of the second slide plate (18) located on the upper side is fixedly connected with a first clamping plate (19), and the upper end surface of the second slide plate (18) located on the lower side is fixedly connected with two symmetrically distributed second clamping plates (20), and the upper end surface of the vertical plate (2) is installed with a third servo motor (16), and the output end of the third servo motor (16) is fixedly connected to the second screw rod (17).

3. The spiral seam submerged arc welded steel pipe cutting device according to claim 1, characterized in that: Two symmetrically distributed first sliding rods (5) are fixedly connected between the two vertical plates (2), and the first sliding plate (6) is slidably connected to the two first sliding rods (5).

4. A spiral seam submerged arc welded steel pipe cutting device according to claim 2, characterized in that: The second screw rod (17) is a bidirectional screw rod.

5. The spiral seam submerged arc welded steel pipe cutting device according to claim 2, characterized in that: The opposite outer walls of the first clamping plate (19) and the second clamping plate (20) are both provided with rubber pads.

6. The spiral seam submerged arc welded steel pipe cutting device according to claim 2, characterized in that: A controller (21) is provided on the front end surface of the vertical plate (2) on the right side, and the electric push rod (10), the first servo motor (12), the second servo motor (15) and the third servo motor (16) are all electrically connected to the controller (21).

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